1.A Survey on Actual Circumstances of Young Cardiovascular Surgeons No.4
Hisayuki HONGU ; Kenta NISHIYA ; Yuji NAKAMURA ; Go UENO ; Hirotada MASUDA ; Masato OONO ; Daisuke YASUMIZU
Japanese Journal of Cardiovascular Surgery 2020;49(4):4-U1-4-U7
We performed a survey on actual circumstances of work style of under-40 cardiovascular surgeons and obtained responses from 51 surgeons. We report the results and discussion about the questionnaire.
2.Current status of hereditary breast and ovarian cancer practice among gynecologic oncologists in Japan: a nationwide survey by the Japan Society of Gynecologic Oncology (JSGO)
Yusuke KOBAYASHI ; Kenta MASUDA ; Akira HIRASWA ; Kazuhiro TAKEHARA ; Hitoshi TSUDA ; Yoh WATANABE ; Katsutoshi ODA ; Satoru NAGASE ; Masaki MANDAI ; Aikou OKAMOTO ; Nobuo YAEGASHI ; Mikio MIKAMI ; Takayuki ENOMOTO ; Daisuke AOKI ; Hidetaka KATABUCHI ;
Journal of Gynecologic Oncology 2022;33(5):e61-
Objective:
The practices pertaining to hereditary breast and ovarian cancer (HBOC) in Japan have been rapidly changing owing to the clinical development of poly(ADP-ribose) polymerase inhibitors, the increasing availability of companion diagnostics, and the broadened insurance coverage of HBOC management from April 2020. A questionnaire of gynecologic oncologists was conducted to understand the current status and to promote the widespread standardization of future HBOC management.
Methods:
A Google Form questionnaire was administered to the members of the Japan Society of Gynecologic Oncology. The survey consisted of 25 questions in 4 categories: respondent demographics, HBOC management experience, insurance coverage of HBOC management, and educational opportunities related to HBOC.
Results:
A total of 666 valid responses were received. Regarding the prevalence of HBOC practice, the majority of physicians responded in the negative and required human resources, information sharing and educational opportunities, and expanded insurance coverage to adopt and improve HBOC practice. Most physicians were not satisfied with the educational opportunities provided so far, and further expansion was desired. They remarked on the psychological burdens of many HBOC managements. Physicians reported these burdens could be alleviated by securing sufficient time to engage in HBOC management, creating easy-to-understand explanatory material for patients, collaboration with specialists in genetic medicine, and educational opportunities.
Conclusion
Gynecologic oncologists in Japan are struggling to deal with psychological burdens in HBOC practice. To promote the clinical practice of HBOC management, there is an urgent need to strengthen human resources and improve educational opportunities, and expand insurance coverage for HBOC management.
3.TP53 variants in p53 signatures and the clonality of STICs in RRSO samples
Tomoko AKAHANE ; Kenta MASUDA ; Akira HIRASAWA ; Yusuke KOBAYASHI ; Arisa UEKI ; Miho KAWAIDA ; Kumiko MISU ; Kohei NAKAMURA ; Shimpei NAGAI ; Tatsuyuki CHIYODA ; Wataru YAMAGAMI ; Shigenori HAYASHI ; Fumio KATAOKA ; Kouji BANNO ; Kokichi SUGANO ; Hajime OKITA ; Kenjiro KOSAKI ; Hiroshi NISHIHARA ; Daisuke AOKI
Journal of Gynecologic Oncology 2022;33(4):e50-
Objective:
Precursor lesions may be identified in fallopian tube tissue after risk-reducing salpingo-oophorectomy (RRSO) in patients with pathogenic variants of BRCA1/2. Serous tubal intraepithelial carcinoma (STIC) is considered a precursor of high-grade serous carcinoma, whereas the significance of the p53 signature remains unclear. In this study, we investigated the relationship between the p53 signature and the risk of ovarian cancer.
Methods:
We analyzed the clinicopathological findings and conducted DNA sequencing for TP53 variants of p53 signatures and STIC lesions isolated using laser capture microdissection in 13 patients with pathogenic variants of BRCA1/2 who underwent RRSO and 17 control patients with the benign gynecologic disease.
Results:
TP53 pathogenic variants were detected significantly higher in RRSO group than control (p<0.001). No difference in the frequency of p53 signatures were observed between groups (53.8% vs 29.4%; p=0.17). TP53 sequencing and next-generation sequencing analysis in a patient with STIC and occult cancer revealed 2 TP53 mutations causing different p53 staining for STICs and another TP53 mutation shared between STIC and occult cancer.
Conclusion
The sequence analysis for TP53 revealed 2 types of p53 signatures, one with a risk of progression to STIC and ovarian cancer with pathological variants in TP53 and the other with a low risk of progression without pathological variants in TP53 as seen in control.